How to use this result
Use this only to reserve funds before hydraulic analysis, water testing and site investigation establish the real scope.
Area allowance
A generalized area relationship is adjusted for system and retrofit difficulty.
Major separate items
Water infrastructure, design and restoration remain explicit because they can dominate older-building projects.
Important: Fire codes, building codes, standards, inspection schedules, permits and insurance requirements vary by country, province or state, municipality, building use, occupancy, construction date, renovation history and system type. The authority having jurisdiction and qualified local professionals must determine what applies to a real property. This calculator cannot select system type, hazard classification, sprinkler arrangement, pipe size, pump duty or water demand.